Keyboard backlight turns randomly on and the cursor is blinking

Hey community,

For about a year I have been suffering from the following problem: the keyboard backlight on my macbook air m1 after turning off due to inactivity, suddenly turns on after a few moments. Along with this, the mouse cursor blinks. This is most annoying when watching movies.

I have already tried to reinstall the system, after that it began to happen not so often, but still about once an hour it blinks.

Maybe some of you have encountered this and know how to help me?

Hier is an YouTube video, where you can see the problem.

https://youtube.com/shorts/jzNYv8uv6as?feature=share